On the economics of stress

Before my exams last week, my stress levels looked like this:

My theory is that the total amount of stress available to a person is fixed, so the more you have to stress about, the less the impact of each individual item.  And the other part of my theory is that you only feel the impact of the most stressful thing you're stressing about.  So I was comparatively unstressed, especially when compared to my Esteemed Colleagues who were not moving house, having babies or dealing with idiot bosses, and whose stress levels therefore looked like this:

But now my exams are over, I've moved house, and I don't have to see my idiot boss again.  So my stress has been redistributed to look like this:

So I'm freaking out.